Jul 26, 2020 - 08:23 AM
You purchased medium-sized 3/4" mealworms which are roughly 6 weeks away from pupation if kept at optimal conditions.
Our regular mealworms pupate readily at a very specific temperature range. Any colder than 70° they will have slow metabolisms and it will take many, many weeks. Any warmer than 85° and they will become too warm, not allowing their metabolisms to slow enough for them to enter pupation.
So if you can keep them right between 75 and 80° that is the prime temperature for pupation to occur readily.
We sell several species of worm, please be sure to purchase our regular mealworms found on this page: Mealworms
For the home breeder, we recommend using the good instructions found on either of these two websites: